Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150
The AirTAC Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 50mm and 150mm give 4 controllable stop positions across a 200mm total travel, with a Ø80mm bore, PT3/8 ports and adjustable end cushioning.
- BoreØ80 mm
- Stroke 150 mm
- Stroke 2150 mm
- Total travel200 mm
- Positions4 stops
- Port sizePT3/8
About the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150
The SCT80X50X150 is an 80 mm bore multi-position pneumatic cylinder that provides four fixed rod positions: fully retracted (0 mm), 50 mm, 150 mm, and the combined total travel of 200 mm. Each piston section generates a push force of 2513 N at 0.5 MPa, making it a robust actuator for tasks requiring distinct intermediate stops without complex servo controls.
This tandem cylinder uses a 25 mm diameter rod and PT3/8 ports, with a 28 mm adjustable air cushion at each end for smooth deceleration. The body length A(SCT) is 296 mm, and the maximum push force per section reaches 4523 N at the 0.9 MPa operating limit, providing substantial power for multi-step clamping or positioning sequences.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 Technical Specifications
| Model | Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø80 mm |
| Stroke 1 / Stroke 2 | 50 / 150 mm |
| Total travel | 200 mm |
| Stop positions | 4 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (4)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 50 mm |
| P2 (section 2) | 150 mm |
| P3 (both extended) | 200 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm (SCT range 32–100). |
| ×50 | Stroke 1 (section 1) in mm. |
| ×150 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 Is Used
Two-Stage Sorting Gate
Use the 0, 50, and 150 mm positions to direct items down three different conveyor lanes, with the 200 mm position acting as a fourth diverting path for a high-throughput sorting system.
Multi-Depth Pressing
Achieve two distinct pressing depths in one cycle. The first section extends to 50 mm for a pre-forming operation, and the second section extends to 150 mm for the final forming stroke, ensuring consistent part geometry.
Sequential Part Transfer
Execute a pick-and-place sequence with an intermediate stop. The rod moves to 50 mm to grip a part, retracts to 0 mm, then extends to 150 mm to place it, and finally to 200 mm for a secondary ejection push.
Is the Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 the Right Cylinder?
Select the SCT80X50X150 when your application needs four distinct linear positions without the cost and complexity of multiple cylinders and external hard stops. If lower force is acceptable, stepping down to a 63 mm bore (1559 N push at 0.5 MPa per section) can reduce air consumption, while a 100 mm bore (3927 N push) offers a significant power increase for heavier loads. For a direct replacement, match the 80 mm bore, both the 50 mm and 150 mm strokes, PT port thread, and basic mounting configuration exactly.
With the longer 150 mm stroke on the second section, ensure the external load is guided and supported to prevent side-loading and rod bending, particularly when the rod is fully extended to the 200 mm total travel position.
Multi-position checklist
- ✓ Need 4 repeatable stops?
- ✓ Section strokes 50 + 150 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT80~100 Multi-Position Tandem Cylinder SCT80X50X150 FAQ
This cylinder provides four discrete mechanical stops: 0 mm (fully retracted), 50 mm (first section extended), 150 mm (second section extended), and 200 mm (both sections extended). The positions are fixed by the two stroke lengths and are not infinitely variable.
Each piston section provides the same force as a standard SC80 cylinder—2513 N push at 0.5 MPa. The tandem design does not double the force; it provides the same force at multiple discrete positions. This saves space and simplifies plumbing compared to mounting two independent 80 mm bore cylinders to achieve the same four-position functionality.
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